/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraNode.h
Called when one of the pins of this node has had its' pin type changed from an external source (like theSPinTypeSelectorin the case of kismet)
virtual void PinTypeChanged ( [UEdGraphPin](API\Runtime\Engine\EdGraph\UEdGraphPin) * Pin )